Glossary
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TermDefinition
- General Nautical Terminology, Nautical Topics, Parts of a Boat, Safety Jackstay
A secured line, wire or webbing arranged to guide, support or provide attachment for people or equipment aboard a vessel.
On yachts, deck...
More Details - General Nautical Terminology, Nautical Topics, Safety, Signals & Communication Code Flag Juliett (J)
An International Code of Signals flag whose single-letter meaning is “I am on fire and have dangerous cargo on board, or I am leaking dangerous...
More Details - General Nautical Terminology, Nautical Topics, Parts of a Boat, Points of Sail, Safety Jib
A triangular headsail set forward of a mast, normally with its luff supported by a stay or foil.
A jib is generally non-overlapping or less...
More Details - General Nautical Terminology, Nautical Topics, Parts of a Boat, Points of Sail, Safety Jib Sheets
The lines attached to or led from a jib’s clew to control its angle and shape.
One sheet normally leads to each side of the vessel. The...
More Details - General Nautical Terminology, Nautical Topics, Signals & Communication Letter J (Flag Semaphore)
A two-flag semaphore position representing the letter J.
The signaller holds one flag in each hand at the prescribed angles illustrated in the...
More Details - General Nautical Terminology, Nautical Topics, Signals & Communication Letter J (Morse Code)
The International Morse Code letter J, represented by dot dash dash dash (.---).
A dot lasts one signal unit and a dash three. Elements within...
More Details - General Nautical Terminology, Nautical Topics, Parts of a Boat J Measurement
The horizontal foretriangle measurement from the front of the mast at deck level to the forestay intersection with the deck or bowsprit...
More Details - General Nautical Terminology, Nautical Topics, Parts of a Boat, Safety Jon Buoy
A proprietary inflatable man-overboard recovery system that provides a visible buoyant target and lifting arrangement.
Depending on the model,...
More Details - General Nautical Terminology, Nautical Topics, Phonetic Alphabet, Signals & Communication Juliett
The standard spoken code word for the letter J in the international radiotelephony spelling alphabet.
It is pronounced “JEW-lee-ETT” and is...
More Details - General Nautical Terminology, Nautical Topics, Safety Jury Rig
A temporary arrangement assembled to replace or support damaged or failed equipment.
A jury rig uses the materials and equipment available...
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